The Humpback Limia, scientifically known as Poecilia (Limia) nigrofasciata, is a small and attractive livebearer native to the freshwater streams and lakes of Haiti and the Dominican Republic. This species is part of the Poeciliidae family, which also includes well-known fish such as guppies and mollies. The Humpback Limia is particularly noted for its distinctive body shape with a pronounced dorsal hump, especially evident in mature males, and its striking coloration featuring horizontal black stripes along a silvery or yellowish body.

Humpback Limias are relatively easy to care for and make excellent candidates for community aquariums due to their peaceful nature. They thrive in environments that mimic their natural tropical habitats, which include warm, clean, and well-oxygenated water with plenty of plants and open swimming spaces. The presence of plants not only provides shelter and breeding areas but also helps to maintain water quality.

Their diet in captivity should be varied and include a mix of high-quality flake food, small pellets, and live or frozen foods such as brine shrimp and bloodworms. This varied diet helps ensure they receive all necessary nutrients and maintains their vibrant coloration.

Breeding Humpback Limias is typically straightforward, as they are livebearers like other members of the Poeciliidae family. Females give birth to fully formed, free-swimming fry after a gestation period. The species is known for its high reproductive rate, and the fry often require little special care beyond protection from potential predators, including adult fish. Providing dense plant cover or a breeding box can help increase fry survival rates.

Conservation of their natural habitats is essential, as the areas in which Humpback Limias are found are susceptible to environmental degradation and pollution. Efforts to maintain clean and stable ecosystems are crucial for the survival of this species in the wild. In the aquarium trade, promoting captive breeding can help reduce pressure on wild populations.

Overall, the Humpback Limia offers a delightful addition to the home aquarium, appealing to both novice and experienced fishkeepers with its ease of care, breeding, and peaceful demeanor. Their unique appearance and active swimming make them a joy to watch and a beautiful contribution to any freshwater setup.